Dr. James Dobson, who founded the highly influential groups Focus on the Family and Family Research Council and now runs Family Talk Radio, is warning that if the U.S. Supreme Court redefines marriage as analysts predict, the ruling will presage the “fall of Western civilization.” “I do not recall a time when the institutions of marriage and the family have faced such peril, or when the forces arrayed against them were more formidable or determined,” he writes in a letter distributed to his…